SSO login redirect
Maybe I'm misunderstanding how the Single Sign On is supposed to work, but I've been unable to submit a response using the feedback tab widget. The tab widget opens and renders correctly, but when I submit the form I am redirected (within the popup) to my app's login page (as entered in the OneLogin -> External Login URL), but as I'm already logged into my app, I am simply redirected by my app to my own home page. How is the redirect back to useresponse supposed to happen (I don't see anything in the query string instructing my app where to redirect to once I authenticate the user)? Should the redirect to my login be happening in the first place? I thought all the information necessary to enter the response was encoded in the URI produced by the SSO script. What response should fetching that URI produce (currently I receive a completely blank HTTP response)?
I'm still in my corporate trial period, on version 2.3.4 (unable to upgrade, no FTP credentials), and I want to get SSO Login working before committing to purchase, since this is a key requirement for me. I am using Ruby on Rails, and have converted the PHP script from the Admin manual to Ruby, and all appears to be encoding correctly (both the PHP and my converted Ruby script produce the same URI). My OneLogin config is attached.